Now that Katrina Kaif has made her Insta debut, Shah Rukh Khan feels that Instagram will be 'so much prettier'. King Khan gave a warm welcome to his 'Jab Tak Hai Jaan' co-star by sharing an adorable picture of the two. He captioned the pic, "Instagram will be so much prettier now. Please welcome my friend, the lovely @katrinakaif." Katrina, who joined Instagram on Thursday, has already scored over a million followers in just two days. Earlier, celebrities like Salman Khan, Ranveer Singh, Akshay Kumar, Alia Bhatt, Sidharth Malhotra and Karan Johar also welcomed the 'Baar Baar Dekho' star on the social media platform.